//
//  COperations.m
//  Invest
//
//  Created by 邓晓羽 on 15/1/14.
//  Copyright (c) 2015年 chenliang. All rights reserved.
//

#import "COperations.h"

@implementation COperations

+(NSString*)fixNSString:(NSString *)str
{
    if( str==nil ||
        [str isEqual:[NSNull null]] ||
        [str isEqualToString:@""] )
    {
        return @"";
    }
    return str;
}

@end
